Absence of man hormones extends transplanted cell survival, says new study Trophoblast stem cells , cells within the layer of peripheral embryonic stem cells that the placenta is formed, are thought to exhibit immune privilege that aids cell survivability and is normally potentially beneficial for cell and gene therapies. Further, the survivability of TSCs offers been considered to require the presence of ovarian hormones. However, non-e of these assumptions has ever been verified. This study, published in today’s problem of the journal Cell Transplantation – now freely available on-line at – has demonstrated that it’s the absence of male hormones, rather than the presence of female hormones, that allows extended transplanted cell survivability.All type of small and big vegetation release smoke which would go to up in the clouds so when they include rain it pollutes drinking water also. Some building and factories are burn oil and fossil fuels this also cause of pollution. If we are discussing about power plants then we should never to forget nuclear power plant life. It’s badly impact environment due to radiation and radioactive element. Destroying Agriculture and Forests We know that trees, plants and green existence is how very important to us.